Towards high sensitivity gas detection with hollow-core photonic bandgap fibers

Fan Yang, Wei Jin, Yingchun Cao, Hoi Lut Ho, Yiping Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

51 Citations (Scopus)


This paper investigates the effect of modal interference on the performance of hollow-core photonic bandgap fiber (HC-PBF) gas sensors. By optimizing mode launch, using proper length of sensing HC-PBF, and applying proper wavelength modulation in combination with lock-in detection, as well as appropriate digital signal processing, an estimated lower detection limit of less than 1 part-per-million by volume (ppmv) acetylene is achieved.
Original languageEnglish
Pages (from-to)24894-24907
Number of pages14
JournalOptics Express
Issue number20
Publication statusPublished - 1 Jan 2014

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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